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Run: 2026-07-09-01KX40FRNNQ87VVCT079RHWR9S
Run Details
Model:
GPT-5.6 Terra (Reasoning)
Test:
N-Length Sentences
Scenario:
Write sentences with 10 words each
Duration:
6.6s
Cost:
$0.012868
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
100.00%
Matches word count
(details)
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
Rain battered Blackthorn Manor while guests gathered for midnight séance. At precisely twelve, chandelier flickered above the great dining room. Colonel Vale raised his glass, smiling toward his assembled enemies. Then darkness swallowed every face, every whisper, every trembling hand. A gunshot cracked sharply, followed by Lady Emmeline's startled scream. When candles returned, Vale lay bleeding beside the locked conservatory. His silver key gleamed beneath fingers curled around torn velvet. No window stood open, yet muddy footprints crossed marble tiles. Detective Rowan entered quietly, carrying rainwater, suspicion, and unwelcome certainty. “Nobody leaves,” he said, studying the corpse's oddly peaceful expression.
created_at
"2026-07-09T17:58:24.193Z"
7/9/2026, 5:58:24 PM
model
"openai/gpt-5.6-terra-20260709"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
2701
moderation_latency
(null)
generation_time
6382
tokens_prompt
46
tokens_completion
483
native_tokens_prompt
41
native_tokens_completion
851
native_tokens_completion_images
0
native_tokens_reasoning
700
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"completed"
service_tier
"default"
usage
0.0128675
router
(null)
provider_responses
0
endpoint_id
"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id
"resp_08d8b3c925c50e44016a4fe1403eb081969b000f9d097819f1"
is_byok
false
latency
186
model_permaslug
"openai/gpt-5.6-terra-20260709"
provider_name
"OpenAI"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer
(null)
request_id
"req-1783619904-WBiHKuZzF8beoWZcBPaN"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1783619904-apYG2iUyAUld70XigawY"
upstream_id
"resp_08d8b3c925c50e44016a4fe1403eb081969b000f9d097819f1"
total_cost
0.0128675
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
response_cache_source_id
(null)
data_region
"global"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
sentences
10
wordCounts
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10
8
10
9
10